Incumbent Assumed office  January 1, 2002 Preceded by Rudy Giuliani Born February 14, 1942 (1942-02-14) (age 69) Boston, Massachusetts, U.S. Political party Democratic (until 2001) Republican (2001–2007) Independent (2007–present) Domestic partner Diana Taylor Residence Upper East Side, New York City Alma mater Johns Hopkins University (B.S.) Harvard University (M.B.A.) Religion Reform Judaism Net worth US$18.0 billion (est.) (Forbes, 2010) Signature Website Official mayoral website Michael Rubens Bloomberg (born February 14, 1942) is the current Mayor of New York City, and the 10th richest person in the United States, having net worth of US$18 billion in 2010. He is the founder and 88% owner of Bloomberg L.P., a financial news and information services media company..